Home / 27,421.80-41,128.30-9,882.60

Finding the Fourth Proportional to 27,421.80, 41,128.30 and 9,882.60

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Solution

The fourth proportional to 27,421.80, 41,128.30 and 9,882.60 is: 14,822.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,421.80 : 41,128.30 = 9,882.60 : x
  2. Step 2: Convert to fraction form
    27,421.80/41,128.30 = 9,882.60/x
  3. Step 3: Cross multiply
    27,421.80x = 41,128.30 × 9,882.60
  4. Step 4: Simplify right side
    27,421.80x = 406,454,537.58
  5. Step 5: Solve for x
    x = 406,454,537.58/27,421.80
  6. Step 6: Final answer
    x = 14,822.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.